/**
* process the XML file and add, change, delete or fetches data
*
* @todo can we get rid of LIBXML_NOWARNING
* @todo we need to stored the initial data for folders and lifetime as the phone is sending them only when they change
* @return resource
*/
public function handle()
{
$intervalStart = time();
$status = self::STATUS_NO_CHANGES_FOUND;
// the client does not send a wbxml document, if the Ping parameters did not change compared with the last request
if ($this->_requestBody instanceof DOMDocument) {
$xml = simplexml_import_dom($this->_requestBody);
$xml->registerXPathNamespace('Ping', 'Ping');
if (isset($xml->HeartbeatInterval)) {
$this->_device->pinglifetime = (int) $xml->HeartbeatInterval;
}
if (isset($xml->Folders->Folder)) {
$folders = array();
foreach ($xml->Folders->Folder as $folderXml) {
try {
// does the folder exist?
$folder = $this->_folderBackend->getFolder($this->_device, (string) $folderXml->Id);
$folders[$folder->id] = $folder;
} catch (Syncroton_Exception_NotFound $senf) {
if ($this->_logger instanceof Syncroton_Log) {
$this->_logger->debug(__METHOD__ . '::' . __LINE__ . " " . $senf->getMessage());
}
$status = self::STATUS_FOLDER_NOT_FOUND;
break;
}
}
$this->_device->pingfolder = serialize(array_keys($folders));
}
}
$this->_device->lastping = new DateTime('now', new DateTimeZone('utc'));
if ($status == self::STATUS_NO_CHANGES_FOUND) {
$this->_device = $this->_deviceBackend->update($this->_device);
}
$lifeTime = $this->_device->pinglifetime;
$maxLifeTime = Syncroton_Registry::getMaxPingInterval();
if ($maxLifeTime > 0 && $lifeTime > $maxLifeTime) {
$ping = $this->_outputDom->documentElement;
$ping->appendChild($this->_outputDom->createElementNS('uri:Ping', 'Status', self::STATUS_INTERVAL_TO_GREAT_OR_SMALL));
$ping->appendChild($this->_outputDom->createElementNS('uri:Ping', 'HeartbeatInterval', $maxLifeTime));
return;
}
$intervalEnd = $intervalStart + $lifeTime;
$secondsLeft = $intervalEnd;
$folders = unserialize($this->_device->pingfolder);
if ($status === self::STATUS_NO_CHANGES_FOUND && (!is_array($folders) || count($folders) == 0)) {
$status = self::STATUS_MISSING_PARAMETERS;
}
if ($this->_logger instanceof Syncroton_Log) {
$this->_logger->debug(__METHOD__ . '::' . __LINE__ . " Folders to monitor({$lifeTime} / {$intervalStart} / {$intervalEnd} / {$status}): " . print_r($folders, true));
}
if ($status === self::STATUS_NO_CHANGES_FOUND) {
do {
// take a break to save battery lifetime
sleep(Syncroton_Registry::getPingTimeout());
try {
$device = $this->_deviceBackend->get($this->_device->id);
} catch (Syncroton_Exception_NotFound $e) {
if ($this->_logger instanceof Syncroton_Log) {
$this->_logger->debug(__METHOD__ . '::' . __LINE__ . " " . $e->getMessage());
}
$status = self::STATUS_FOLDER_NOT_FOUND;
break;
} catch (Exception $e) {
if ($this->_logger instanceof Syncroton_Log) {
$this->_logger->err(__METHOD__ . '::' . __LINE__ . " " . $e->getMessage());
}
// do nothing, maybe temporal issue, should we stop?
continue;
}
// if another Ping command updated lastping property, we can stop processing this Ping command request
if (isset($device->lastping) && $device->lastping instanceof DateTime && $device->pingfolder === $this->_device->pingfolder && $device->lastping->getTimestamp() > $this->_device->lastping->getTimestamp()) {
break;
}
$now = new DateTime('now', new DateTimeZone('utc'));
foreach ($folders as $folderId) {
try {
$folder = $this->_folderBackend->get($folderId);
$dataController = Syncroton_Data_Factory::factory($folder->class, $this->_device, $this->_syncTimeStamp);
} catch (Syncroton_Exception_NotFound $e) {
if ($this->_logger instanceof Syncroton_Log) {
$this->_logger->debug(__METHOD__ . '::' . __LINE__ . " " . $e->getMessage());
}
$status = self::STATUS_FOLDER_NOT_FOUND;
break;
} catch (Exception $e) {
if ($this->_logger instanceof Syncroton_Log) {
$this->_logger->error(__METHOD__ . '::' . __LINE__ . " " . $e->getMessage());
}
// do nothing, maybe temporal issue, should we stop?
continue;
}
try {
$syncState = $this->_syncStateBackend->getSyncState($this->_device, $folder);
// another process synchronized data of this folder already. let's skip it
if ($syncState->lastsync > $this->_syncTimeStamp) {
continue;
}
// safe battery time by skipping folders which got synchronied less than Syncroton_Registry::getQuietTime() seconds ago
if ($now->getTimestamp() - $syncState->lastsync->getTimestamp() < Syncroton_Registry::getQuietTime()) {
continue;
}
$foundChanges = $dataController->hasChanges($this->_contentStateBackend, $folder, $syncState);
} catch (Syncroton_Exception_NotFound $e) {
// folder got never synchronized to client
if ($this->_logger instanceof Syncroton_Log) {
$this->_logger->debug(__METHOD__ . '::' . __LINE__ . " " . $e->getMessage());
}
if ($this->_logger instanceof Syncroton_Log) {
$this->_logger->info(__METHOD__ . '::' . __LINE__ . ' syncstate not found. enforce sync for folder: ' . $folder->serverId);
}
$foundChanges = true;
}
if ($foundChanges == true) {
$this->_foldersWithChanges[] = $folder;
$status = self::STATUS_CHANGES_FOUND;
}
}
if ($status != self::STATUS_NO_CHANGES_FOUND) {
break;
}
$secondsLeft = $intervalEnd - time();
if ($this->_logger instanceof Syncroton_Log) {
$this->_logger->debug(__METHOD__ . '::' . __LINE__ . " DeviceId: " . $this->_device->deviceid . " seconds left: " . $secondsLeft);
}
// See: http://www.tine20.org/forum/viewtopic.php?f=12&t=12146
//
// break if there are less than PingTimeout + 10 seconds left for the next loop
// otherwise the response will be returned after the client has finished his Ping
// request already maybe
} while ($secondsLeft > Syncroton_Registry::getPingTimeout() + 10);
}
if ($this->_logger instanceof Syncroton_Log) {
$this->_logger->info(__METHOD__ . '::' . __LINE__ . " DeviceId: " . $this->_device->deviceid . " Lifetime: {$lifeTime} SecondsLeft: {$secondsLeft} Status: {$status})");
}
$ping = $this->_outputDom->documentElement;
$ping->appendChild($this->_outputDom->createElementNS('uri:Ping', 'Status', $status));
if ($status === self::STATUS_CHANGES_FOUND) {
$folders = $ping->appendChild($this->_outputDom->createElementNS('uri:Ping', 'Folders'));
foreach ($this->_foldersWithChanges as $changedFolder) {
$folder = $folders->appendChild($this->_outputDom->createElementNS('uri:Ping', 'Folder', $changedFolder->serverId));
if ($this->_logger instanceof Syncroton_Log) {
$this->_logger->info(__METHOD__ . '::' . __LINE__ . " DeviceId: " . $this->_device->deviceid . " changes in folder: " . $changedFolder->serverId);
}
}
}
}
/**
* (non-PHPdoc)
* @see Syncroton_Command_Wbxml::getResponse()
*/
public function getResponse()
{
$sync = $this->_outputDom->documentElement;
$collections = $this->_outputDom->createElementNS('uri:AirSync', 'Collections');
$totalChanges = 0;
// Detect devices that do not support empty Sync reponse
$emptySyncSupported = !preg_match('/(meego|nokian800)/i', $this->_device->useragent);
// continue only if there are changes or no time is left
if ($this->_heartbeatInterval > 0) {
$intervalStart = time();
do {
// take a break to save battery lifetime
sleep(Syncroton_Registry::getPingTimeout());
$now = new DateTime(null, new DateTimeZone('utc'));
foreach ($this->_collections as $collectionData) {
// continue immediately if folder does not exist
if (!$collectionData->folder instanceof Syncroton_Model_IFolder) {
break 2;
// countinue immediately if syncstate is invalid
} elseif (!$collectionData->syncState instanceof Syncroton_Model_ISyncState) {
break 2;
} else {
if ($collectionData->getChanges !== true) {
continue;
}
try {
// just check if the folder still exists
$this->_folderBackend->get($collectionData->folder);
} catch (Syncroton_Exception_NotFound $senf) {
if ($this->_logger instanceof Syncroton_Log) {
$this->_logger->debug(__METHOD__ . '::' . __LINE__ . " collection does not exist anymore: " . $collectionData->collectionId);
}
$collectionData->getChanges = false;
// make sure this is the last while loop
// no break 2 here, as we like to check the other folders too
$intervalStart -= $this->_heartbeatInterval;
}
// check that the syncstate still exists and is still valid
try {
$syncState = $this->_syncStateBackend->getSyncState($this->_device, $collectionData->folder);
// another process synchronized data of this folder already. let's skip it
if ($syncState->id !== $collectionData->syncState->id) {
if ($this->_logger instanceof Syncroton_Log) {
$this->_logger->debug(__METHOD__ . '::' . __LINE__ . " syncstate changed during heartbeat interval for collection: " . $collectionData->folder->serverId);
}
$collectionData->getChanges = false;
// make sure this is the last while loop
// no break 2 here, as we like to check the other folders too
$intervalStart -= $this->_heartbeatInterval;
}
} catch (Syncroton_Exception_NotFound $senf) {
if ($this->_logger instanceof Syncroton_Log) {
$this->_logger->debug(__METHOD__ . '::' . __LINE__ . " no syncstate found anymore for collection: " . $collectionData->folder->serverId);
}
$collectionData->syncState = null;
// make sure this is the last while loop
// no break 2 here, as we like to check the other folders too
$intervalStart -= $this->_heartbeatInterval;
}
// safe battery time by skipping folders which got synchronied less than Syncroton_Command_Ping::$quietTime seconds ago
if (!$collectionData->syncState instanceof Syncroton_Model_SyncState || $now->getTimestamp() - $collectionData->syncState->lastsync->getTimestamp() < Syncroton_Registry::getQuietTime()) {
continue;
}
$dataController = Syncroton_Data_Factory::factory($collectionData->folder->class, $this->_device, $this->_syncTimeStamp);
// countinue immediately if there are any changes available
if ($dataController->hasChanges($this->_contentStateBackend, $collectionData->folder, $collectionData->syncState)) {
break 2;
}
}
}
// See: http://www.tine20.org/forum/viewtopic.php?f=12&t=12146
//
// break if there are less than PingTimeout + 10 seconds left for the next loop
// otherwise the response will be returned after the client has finished his Ping
// request already maybe
} while (time() - $intervalStart < $this->_heartbeatInterval - (Syncroton_Registry::getPingTimeout() + 10));
}
foreach ($this->_collections as $collectionData) {
$collectionChanges = 0;
/**
* keep track of entries added on server side
*/
$newContentStates = array();
/**
* keep track of entries deleted on server side
*/
$deletedContentStates = array();
// invalid collectionid provided
if (!$collectionData->folder instanceof Syncroton_Model_IFolder) {
$collection = $collections->appendChild($this->_outputDom->createElementNS('uri:AirSync', 'Collection'));
$collection->appendChild($this->_outputDom->createElementNS('uri:AirSync', 'SyncKey', 0));
$collection->appendChild($this->_outputDom->createElementNS('uri:AirSync', 'CollectionId', $collectionData->collectionId));
$collection->appendChild($this->_outputDom->createElementNS('uri:AirSync', 'Status', self::STATUS_FOLDER_HIERARCHY_HAS_CHANGED));
// invalid synckey provided
} elseif (!$collectionData->syncState instanceof Syncroton_Model_ISyncState) {
// set synckey to 0
$collection = $collections->appendChild($this->_outputDom->createElementNS('uri:AirSync', 'Collection'));
$collection->appendChild($this->_outputDom->createElementNS('uri:AirSync', 'SyncKey', 0));
$collection->appendChild($this->_outputDom->createElementNS('uri:AirSync', 'CollectionId', $collectionData->collectionId));
$collection->appendChild($this->_outputDom->createElementNS('uri:AirSync', 'Status', self::STATUS_INVALID_SYNC_KEY));
// initial sync
} elseif ($collectionData->syncState->counter === 0) {
$collectionData->syncState->counter++;
// initial sync
// send back a new SyncKey only
$collection = $collections->appendChild($this->_outputDom->createElementNS('uri:AirSync', 'Collection'));
if (!empty($collectionData->folder->class)) {
$collection->appendChild($this->_outputDom->createElementNS('uri:AirSync', 'Class', $collectionData->folder->class));
}
$collection->appendChild($this->_outputDom->createElementNS('uri:AirSync', 'SyncKey', $collectionData->syncState->counter));
$collection->appendChild($this->_outputDom->createElementNS('uri:AirSync', 'CollectionId', $collectionData->collectionId));
$collection->appendChild($this->_outputDom->createElementNS('uri:AirSync', 'Status', self::STATUS_SUCCESS));
} else {
$dataController = Syncroton_Data_Factory::factory($collectionData->folder->class, $this->_device, $this->_syncTimeStamp);
$clientModifications = $this->_modifications[$collectionData->collectionId];
$serverModifications = array('added' => array(), 'changed' => array(), 'deleted' => array());
if ($collectionData->getChanges === true) {
// continue sync session?
if (is_array($collectionData->syncState->pendingdata)) {
if ($this->_logger instanceof Syncroton_Log) {
$this->_logger->info(__METHOD__ . '::' . __LINE__ . " restored from sync state ");
}
$serverModifications = $collectionData->syncState->pendingdata;
} elseif ($dataController->hasChanges($this->_contentStateBackend, $collectionData->folder, $collectionData->syncState)) {
// update _syncTimeStamp as $dataController->hasChanges might have spent some time
$this->_syncTimeStamp = new DateTime(null, new DateTimeZone('utc'));
try {
// fetch entries added since last sync
$allClientEntries = $this->_contentStateBackend->getFolderState($this->_device, $collectionData->folder);
$allServerEntries = $dataController->getServerEntries($collectionData->collectionId, $collectionData->options['filterType']);
// add entries
$serverDiff = array_diff($allServerEntries, $allClientEntries);
// add entries which produced problems during delete from client
$serverModifications['added'] = $clientModifications['forceAdd'];
// add entries not yet sent to client
$serverModifications['added'] = array_unique(array_merge($serverModifications['added'], $serverDiff));
// @todo still needed?
foreach ($serverModifications['added'] as $id => $serverId) {
// skip entries added by client during this sync session
if (isset($clientModifications['added'][$serverId]) && !isset($clientModifications['forceAdd'][$serverId])) {
if ($this->_logger instanceof Syncroton_Log) {
$this->_logger->info(__METHOD__ . '::' . __LINE__ . " skipped added entry: " . $serverId);
}
unset($serverModifications['added'][$id]);
}
}
// entries to be deleted
$serverModifications['deleted'] = array_diff($allClientEntries, $allServerEntries);
// fetch entries changed since last sync
$serverModifications['changed'] = $dataController->getChangedEntries($collectionData->collectionId, $collectionData->syncState->lastsync, $this->_syncTimeStamp, $collectionData->options['filterType']);
$serverModifications['changed'] = array_merge($serverModifications['changed'], $clientModifications['forceChange']);
foreach ($serverModifications['changed'] as $id => $serverId) {
// skip entry, if it got changed by client during current sync
if (isset($clientModifications['changed'][$serverId]) && !isset($clientModifications['forceChange'][$serverId])) {
if ($this->_logger instanceof Syncroton_Log) {
$this->_logger->info(__METHOD__ . '::' . __LINE__ . " skipped changed entry: " . $serverId);
}
unset($serverModifications['changed'][$id]);
} else {
if (isset($clientModifications['added'][$serverId]) && !isset($clientModifications['forceAdd'][$serverId])) {
if ($this->_logger instanceof Syncroton_Log) {
$this->_logger->info(__METHOD__ . '::' . __LINE__ . " skipped change for added entry: " . $serverId);
}
unset($serverModifications['changed'][$id]);
}
}
}
// entries comeing in scope are already in $serverModifications['added'] and do not need to
// be send with $serverCanges
$serverModifications['changed'] = array_diff($serverModifications['changed'], $serverModifications['added']);
} catch (Exception $e) {
if ($this->_logger instanceof Syncroton_Log) {
$this->_logger->crit(__METHOD__ . '::' . __LINE__ . " Folder state checking failed: " . $e->getMessage());
}
if ($this->_logger instanceof Syncroton_Log) {
$this->_logger->debug(__METHOD__ . '::' . __LINE__ . " Folder state checking failed: " . $e->getTraceAsString());
}
// Prevent from removing client entries when getServerEntries() fails
// @todo: should we set Status and break the loop here?
$serverModifications = array('added' => array(), 'changed' => array(), 'deleted' => array());
}
}
if ($this->_logger instanceof Syncroton_Log) {
$this->_logger->info(__METHOD__ . '::' . __LINE__ . " found (added/changed/deleted) " . count($serverModifications['added']) . '/' . count($serverModifications['changed']) . '/' . count($serverModifications['deleted']) . ' entries for sync from server to client');
}
}
// collection header
$collection = $this->_outputDom->createElementNS('uri:AirSync', 'Collection');
if (!empty($collectionData->folder->class)) {
$collection->appendChild($this->_outputDom->createElementNS('uri:AirSync', 'Class', $collectionData->folder->class));
}
$syncKeyElement = $collection->appendChild($this->_outputDom->createElementNS('uri:AirSync', 'SyncKey'));
$collection->appendChild($this->_outputDom->createElementNS('uri:AirSync', 'CollectionId', $collectionData->collectionId));
$collection->appendChild($this->_outputDom->createElementNS('uri:AirSync', 'Status', self::STATUS_SUCCESS));
$responses = $this->_outputDom->createElementNS('uri:AirSync', 'Responses');
// send reponse for newly added entries
if (!empty($clientModifications['added'])) {
foreach ($clientModifications['added'] as $entryData) {
$add = $responses->appendChild($this->_outputDom->createElementNS('uri:AirSync', 'Add'));
$add->appendChild($this->_outputDom->createElementNS('uri:AirSync', 'ClientId', $entryData['clientId']));
// we have no serverId is the add failed
if (isset($entryData['serverId'])) {
$add->appendChild($this->_outputDom->createElementNS('uri:AirSync', 'ServerId', $entryData['serverId']));
}
$add->appendChild($this->_outputDom->createElementNS('uri:AirSync', 'Status', $entryData['status']));
}
}
// send reponse for changed entries
if (!empty($clientModifications['changed'])) {
foreach ($clientModifications['changed'] as $serverId => $status) {
if ($status !== Syncroton_Command_Sync::STATUS_SUCCESS) {
$change = $responses->appendChild($this->_outputDom->createElementNS('uri:AirSync', 'Change'));
$change->appendChild($this->_outputDom->createElementNS('uri:AirSync', 'ServerId', $serverId));
$change->appendChild($this->_outputDom->createElementNS('uri:AirSync', 'Status', $status));
}
}
}
// send response for to be fetched entries
if (!empty($collectionData->toBeFetched)) {
// unset all truncation settings as entries are not allowed to be truncated during fetch
$fetchCollectionData = clone $collectionData;
// unset truncationSize
if (isset($fetchCollectionData->options['bodyPreferences']) && is_array($fetchCollectionData->options['bodyPreferences'])) {
foreach ($fetchCollectionData->options['bodyPreferences'] as $key => $bodyPreference) {
unset($fetchCollectionData->options['bodyPreferences'][$key]['truncationSize']);
}
}
$fetchCollectionData->options['mimeTruncation'] = Syncroton_Command_Sync::TRUNCATE_NOTHING;
foreach ($collectionData->toBeFetched as $serverId) {
$fetch = $responses->appendChild($this->_outputDom->createElementNS('uri:AirSync', 'Fetch'));
$fetch->appendChild($this->_outputDom->createElementNS('uri:AirSync', 'ServerId', $serverId));
try {
$applicationData = $this->_outputDom->createElementNS('uri:AirSync', 'ApplicationData');
$dataController->getEntry($fetchCollectionData, $serverId)->appendXML($applicationData, $this->_device);
$fetch->appendChild($this->_outputDom->createElementNS('uri:AirSync', 'Status', self::STATUS_SUCCESS));
$fetch->appendChild($applicationData);
} catch (Exception $e) {
if ($this->_logger instanceof Syncroton_Log) {
$this->_logger->warning(__METHOD__ . '::' . __LINE__ . " unable to convert entry to xml: " . $e->getMessage());
}
if ($this->_logger instanceof Syncroton_Log) {
$this->_logger->debug(__METHOD__ . '::' . __LINE__ . " unable to convert entry to xml: " . $e->getTraceAsString());
}
$fetch->appendChild($this->_outputDom->createElementNS('uri:AirSync', 'Status', self::STATUS_OBJECT_NOT_FOUND));
}
}
}
if ($responses->hasChildNodes() === true) {
$collection->appendChild($responses);
}
$commands = $this->_outputDom->createElementNS('uri:AirSync', 'Commands');
foreach ($serverModifications['added'] as $id => $serverId) {
if ($collectionChanges == $collectionData->windowSize || $totalChanges + $collectionChanges >= $this->_globalWindowSize) {
break;
}
#/**
# * somewhere is a problem in the logic for handling moreAvailable
# *
# * it can happen, that we have a contentstate (which means we sent the entry to the client
# * and that this entry is yet in $collectionData->syncState->pendingdata['serverAdds']
# * I have no idea how this can happen, but the next lines of code work around this problem
# */
try {
$this->_contentStateBackend->getContentState($this->_device, $collectionData->folder, $serverId);
if ($this->_logger instanceof Syncroton_Log) {
$this->_logger->info(__METHOD__ . '::' . __LINE__ . " skipped an entry({$serverId}) which is already on the client");
}
unset($serverModifications['added'][$id]);
continue;
} catch (Syncroton_Exception_NotFound $senf) {
// do nothing => content state should not exist yet
}
try {
$add = $this->_outputDom->createElementNS('uri:AirSync', 'Add');
$add->appendChild($this->_outputDom->createElementNS('uri:AirSync', 'ServerId', $serverId));
$applicationData = $add->appendChild($this->_outputDom->createElementNS('uri:AirSync', 'ApplicationData'));
$dataController->getEntry($collectionData, $serverId)->appendXML($applicationData, $this->_device);
$commands->appendChild($add);
$collectionChanges++;
} catch (Syncroton_Exception_MemoryExhausted $seme) {
// continue to next entry, as there is not enough memory left for the current entry
// this will lead to MoreAvailable at the end and the entry will be synced during the next Sync command
if ($this->_logger instanceof Syncroton_Log) {
$this->_logger->warning(__METHOD__ . '::' . __LINE__ . " memory exhausted for entry: " . $serverId);
}
continue;
} catch (Exception $e) {
if ($this->_logger instanceof Syncroton_Log) {
$this->_logger->warning(__METHOD__ . '::' . __LINE__ . " unable to convert entry to xml: " . $e->getMessage());
}
if ($this->_logger instanceof Syncroton_Log) {
$this->_logger->debug(__METHOD__ . '::' . __LINE__ . " unable to convert entry to xml: " . $e->getTraceAsString());
}
}
// mark as sent to the client, even the conversion to xml might have failed
$newContentStates[] = new Syncroton_Model_Content(array('device_id' => $this->_device, 'folder_id' => $collectionData->folder, 'contentid' => $serverId, 'creation_time' => $this->_syncTimeStamp, 'creation_synckey' => $collectionData->syncState->counter + 1));
unset($serverModifications['added'][$id]);
}
/**
* process entries changed on server side
*/
foreach ($serverModifications['changed'] as $id => $serverId) {
if ($collectionChanges == $collectionData->windowSize || $totalChanges + $collectionChanges >= $this->_globalWindowSize) {
break;
}
try {
$change = $this->_outputDom->createElementNS('uri:AirSync', 'Change');
$change->appendChild($this->_outputDom->createElementNS('uri:AirSync', 'ServerId', $serverId));
$applicationData = $change->appendChild($this->_outputDom->createElementNS('uri:AirSync', 'ApplicationData'));
$dataController->getEntry($collectionData, $serverId)->appendXML($applicationData, $this->_device);
$commands->appendChild($change);
$collectionChanges++;
} catch (Syncroton_Exception_MemoryExhausted $seme) {
// continue to next entry, as there is not enough memory left for the current entry
// this will lead to MoreAvailable at the end and the entry will be synced during the next Sync command
if ($this->_logger instanceof Syncroton_Log) {
$this->_logger->warning(__METHOD__ . '::' . __LINE__ . " memory exhausted for entry: " . $serverId);
}
continue;
} catch (Exception $e) {
if ($this->_logger instanceof Syncroton_Log) {
$this->_logger->warning(__METHOD__ . '::' . __LINE__ . " unable to convert entry to xml: " . $e->getMessage());
}
}
unset($serverModifications['changed'][$id]);
}
foreach ($serverModifications['deleted'] as $id => $serverId) {
if ($collectionChanges == $collectionData->windowSize || $totalChanges + $collectionChanges >= $this->_globalWindowSize) {
break;
}
try {
// check if we have sent this entry to the phone
$state = $this->_contentStateBackend->getContentState($this->_device, $collectionData->folder, $serverId);
$delete = $this->_outputDom->createElementNS('uri:AirSync', 'Delete');
$delete->appendChild($this->_outputDom->createElementNS('uri:AirSync', 'ServerId', $serverId));
$deletedContentStates[] = $state;
$commands->appendChild($delete);
$collectionChanges++;
} catch (Exception $e) {
if ($this->_logger instanceof Syncroton_Log) {
$this->_logger->warning(__METHOD__ . '::' . __LINE__ . " unable to convert entry to xml: " . $e->getMessage());
}
}
unset($serverModifications['deleted'][$id]);
}
$countOfPendingChanges = count($serverModifications['added']) + count($serverModifications['changed']) + count($serverModifications['deleted']);
if ($countOfPendingChanges > 0) {
$collection->appendChild($this->_outputDom->createElementNS('uri:AirSync', 'MoreAvailable'));
} else {
$serverModifications = null;
}
if ($commands->hasChildNodes() === true) {
$collection->appendChild($commands);
}
$totalChanges += $collectionChanges;
// increase SyncKey if needed
if (!empty($clientModifications['added']) || !empty($clientModifications['changed']) || !empty($clientModifications['deleted']) || $commands->hasChildNodes() === true || $collectionData->syncState->pendingdata != $serverModifications) {
// ...then increase SyncKey
$collectionData->syncState->counter++;
}
$syncKeyElement->appendChild($this->_outputDom->createTextNode($collectionData->syncState->counter));
if ($this->_logger instanceof Syncroton_Log) {
$this->_logger->info(__METHOD__ . '::' . __LINE__ . " current synckey is " . $collectionData->syncState->counter);
}
if (!$emptySyncSupported || $collection->childNodes->length > 4 || $collectionData->syncState->counter != $collectionData->syncKey) {
$collections->appendChild($collection);
}
}
if (isset($collectionData->syncState) && $collectionData->syncState instanceof Syncroton_Model_ISyncState && $collectionData->syncState->counter != $collectionData->syncKey) {
if ($this->_logger instanceof Syncroton_Log) {
$this->_logger->debug(__METHOD__ . '::' . __LINE__ . " update syncState for collection: " . $collectionData->collectionId);
}
// store pending data in sync state when needed
if (isset($countOfPendingChanges) && $countOfPendingChanges > 0) {
$collectionData->syncState->pendingdata = array('added' => (array) $serverModifications['added'], 'changed' => (array) $serverModifications['changed'], 'deleted' => (array) $serverModifications['deleted']);
} else {
$collectionData->syncState->pendingdata = null;
}
if (!empty($clientModifications['added'])) {
if ($this->_logger instanceof Syncroton_Log) {
$this->_logger->info(__METHOD__ . '::' . __LINE__ . " remove previous synckey as client added new entries");
}
$keepPreviousSyncKey = false;
} else {
$keepPreviousSyncKey = true;
}
$collectionData->syncState->lastsync = clone $this->_syncTimeStamp;
// increment sync timestamp by 1 second
$collectionData->syncState->lastsync->modify('+1 sec');
try {
$transactionId = Syncroton_Registry::getTransactionManager()->startTransaction(Syncroton_Registry::getDatabase());
// store new synckey
$this->_syncStateBackend->create($collectionData->syncState, $keepPreviousSyncKey);
// store contentstates for new entries added to client
foreach ($newContentStates as $state) {
$this->_contentStateBackend->create($state);
}
// remove contentstates for entries to be deleted on client
foreach ($deletedContentStates as $state) {
$this->_contentStateBackend->delete($state);
}
Syncroton_Registry::getTransactionManager()->commitTransaction($transactionId);
//} catch (Zend_Db_Statement_Exception $zdse) {
} catch (Exception $zdse) {
// something went wrong
// maybe another parallel request added a new synckey
// we must remove data added from client
if (!empty($clientModifications['added'])) {
foreach ($clientModifications['added'] as $added) {
$this->_contentStateBackend->delete($added['contentState']);
$dataController->deleteEntry($collectionData->collectionId, $added['serverId'], array());
}
}
Syncroton_Registry::getTransactionManager()->rollBack();
throw $zdse;
}
}
// store current filter type
try {
$folderState = $this->_folderBackend->get($collectionData->folder);
$folderState->lastfiltertype = $collectionData->options['filterType'];
if ($folderState->isDirty()) {
$this->_folderBackend->update($folderState);
}
} catch (Syncroton_Exception_NotFound $senf) {
// failed to get folderstate => should not happen but is also no problem in this state
if ($this->_logger instanceof Syncroton_Log) {
$this->_logger->warning(__METHOD__ . '::' . __LINE__ . ' failed to get folder state for: ' . $collectionData->collectionId);
}
}
}
if ($collections->hasChildNodes() === true) {
$sync->appendChild($collections);
}
if ($sync->hasChildNodes()) {
return $this->_outputDom;
}
return null;
}